The act of two or more really shit people getting into meaningless debates over crap that involves no logic or reason. People nubsquabling often rage quit and talk in such a manner that it is obvious they are hideously ugly.

"fuck man, pudge is so good solo mid!"
"i dont even wanna respond cause i know he'll try to nubsquable with me"

"these fucking retards were nubsquabling about kill stealing all game, god I wanted to say something but there's just no point talking to boks"